Wireless sensor network for smart power grid and clustering algorithm thereof

A wireless sensor and smart grid technology, applied in wireless communication, network topology, electrical components, etc., can solve the problems of a large number of sensor nodes, difficulty in meeting substations, and long monitoring time, and achieve the effect of extending the network cycle

Inactive Publication Date: 2020-06-19
STATE GRID SHAANXI ELECTRIC POWER RES INST +2
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The routing algorithms in the existing wireless sensor network are mainly LEACH algorithm, LEACH-DC algorithm and EEUC algorithm. Long and short response time requirements

Method used

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  • Wireless sensor network for smart power grid and clustering algorithm thereof
  • Wireless sensor network for smart power grid and clustering algorithm thereof
  • Wireless sensor network for smart power grid and clustering algorithm thereof

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Experimental program
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specific Embodiment

[0077] The wireless network coverage area of ​​a substation is 200m*200m, and there are 100 wireless sensor nodes distributed in the substation. The upper left corner is set as the coordinate origin (0, 0), and the center base station is located at (150m, 200m). , and the network parameters are set as shown in Table 1.

[0078] Table 1 Network simulation parameters

[0079]

[0080] In the cluster head election stage, the cluster head is selected according to the node density and the remaining energy of the node, the number of cluster heads is increased in the area with high node density, and the number of cluster heads is reduced in the area with low node density; The farther away from the base station increases the cluster radius, and the closer to the base station decreases the cluster radius.

[0081] The network nodes are distributed as image 3 As shown in the node distribution diagram, the cluster heads are evenly distributed in the whole area according to the surr...

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Abstract

The invention discloses an intelligent power grid-oriented wireless sensor network and a clustering algorithm thereof, and the clustering algorithm comprises the steps: improving a wireless sensor network LEACH algorithm, and guaranteeing the selection rationality of a cluster head through considering the residual energy and node density during the selection of the cluster head; constructing cluster radiuses with different sizes by adopting a non-uniform clustering mechanism during clustering; data are transmitted to a base station in an inter-cluster communication mode in a multi-hop mode, the distance between cluster head nodes and residual energy serve as the selection basis of relay nodes of the next hop, and the purpose of balancing energy loads is achieved. According to a contrast experiment, compared with a failure round of the first node, the algorithm provided by the invention is improved by 76% in comparison with LEACH, is improved by 25% in comparison with LEACH-DC, and is improved by 32% in comparison with EEUC. When the algorithm runs for 1600 rounds, nodes still survive, and the network period is effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of network clustering algorithms, in particular to a smart grid-oriented wireless sensor network and a clustering algorithm thereof. Background technique [0002] With the introduction of the ubiquitous power Internet of Things, a new generation of smart substations has introduced a large number of main control equipment and auxiliary equipment sensors and data acquisition terminals. The traditional wired network method is difficult to adapt to the network access of a large number of sensors and data acquisition terminals. Due to the characteristics of independent and free networking and low power, the wireless sensor network is very suitable for the needs of access sensors and data acquisition terminals in substations. [0003] In order to ensure the application requirements of real-time monitoring, protection and control of the main control equipment and auxiliary equipment in the substation, the sensor no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/10H04W40/20H04W40/32H04W84/18
CPCH04W40/10H04W40/20H04W40/32H04W84/18
Inventor 康林贤万康鸿左坤李良书迟清张晓兰杨传凯李娟绒余华兴吴经锋丁彬谷永刚李鹏程徐丹王子为
Owner STATE GRID SHAANXI ELECTRIC POWER RES INST
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